Instrumental Analysis Chapter 7 questions with
verified answers
A concave grating permits the design of a monochromator that
Ans✓✓✓ lacks collimating and focusing mirrors or lenses
A dielectric is Ans✓✓✓ An insulator with no charged particles
A drawback is that absorption filters with narrow bandwidth don't
Ans✓✓✓ let much light through 10% T
A filter is constructed from Ans✓✓✓ two metal films separated by a
transparent dielectric
A laser consists of an optical cavity containing Ans✓✓✓ laser medium
A monochromator serves as a Ans✓✓✓ wavelength selector
A narrower slit gives a smaller Ans✓✓✓ bandwidth of radiation
A portion of the surface hit by the two lasers is Ans✓✓✓ dissolved
A potential exists between the junction reflecting a difference in
Ans✓✓✓ temperature
,A prism or dispersion monochromator was used in Ans✓✓✓ older
instruments
A thermocouple is a Ans✓✓✓ junction between two different metals
A type of grating that has broad, flat edges for maximum reflection
Ans✓✓✓ Echellette grating
Absorption filter construction is simply Ans✓✓✓ a glass or gelatin with
dye that absors light of different colors
Absorption filters are less expensive than Ans✓✓✓ interference filters
Absorption filters Ans✓✓✓ title
Absorption is Ans✓✓✓ a photon being absorbed
Absorption of radiation by a semiconductor produces electrons and
holes , thus leading to enhanced conductivity Ans✓✓✓
photoconductivity transducer
After the master is made, make a ________________ over the top
Ans✓✓✓ plastic mold
, An external light source excites the Ans✓✓✓ lasing material
As light passes through the mirror like metal films and dielectric, certain
wavelengths are removed by Ans✓✓✓ destructive interference
As you pump the lasing material, most molecules are in the Ans✓✓✓
excited state
Aspects of holographic gratings Ans✓✓✓ up to 6000 lines per
millimeter
up to 50 centimeters long
replicas are cheap
But you had to change the ______________ to transmit appropriate
wavelengths Ans✓✓✓ materials of prisms
lenses
Chemiluminescence is Ans✓✓✓ the emission of light during a chemical
reaction
Construction of a monochromator Ans✓✓✓ entrance slit
collimating mirror
verified answers
A concave grating permits the design of a monochromator that
Ans✓✓✓ lacks collimating and focusing mirrors or lenses
A dielectric is Ans✓✓✓ An insulator with no charged particles
A drawback is that absorption filters with narrow bandwidth don't
Ans✓✓✓ let much light through 10% T
A filter is constructed from Ans✓✓✓ two metal films separated by a
transparent dielectric
A laser consists of an optical cavity containing Ans✓✓✓ laser medium
A monochromator serves as a Ans✓✓✓ wavelength selector
A narrower slit gives a smaller Ans✓✓✓ bandwidth of radiation
A portion of the surface hit by the two lasers is Ans✓✓✓ dissolved
A potential exists between the junction reflecting a difference in
Ans✓✓✓ temperature
,A prism or dispersion monochromator was used in Ans✓✓✓ older
instruments
A thermocouple is a Ans✓✓✓ junction between two different metals
A type of grating that has broad, flat edges for maximum reflection
Ans✓✓✓ Echellette grating
Absorption filter construction is simply Ans✓✓✓ a glass or gelatin with
dye that absors light of different colors
Absorption filters are less expensive than Ans✓✓✓ interference filters
Absorption filters Ans✓✓✓ title
Absorption is Ans✓✓✓ a photon being absorbed
Absorption of radiation by a semiconductor produces electrons and
holes , thus leading to enhanced conductivity Ans✓✓✓
photoconductivity transducer
After the master is made, make a ________________ over the top
Ans✓✓✓ plastic mold
, An external light source excites the Ans✓✓✓ lasing material
As light passes through the mirror like metal films and dielectric, certain
wavelengths are removed by Ans✓✓✓ destructive interference
As you pump the lasing material, most molecules are in the Ans✓✓✓
excited state
Aspects of holographic gratings Ans✓✓✓ up to 6000 lines per
millimeter
up to 50 centimeters long
replicas are cheap
But you had to change the ______________ to transmit appropriate
wavelengths Ans✓✓✓ materials of prisms
lenses
Chemiluminescence is Ans✓✓✓ the emission of light during a chemical
reaction
Construction of a monochromator Ans✓✓✓ entrance slit
collimating mirror
